table_create Bookmarks TABLE_HASH_KEY ShortText
column_create Bookmarks title COLUMN_SCALAR ShortText

table_create Users TABLE_HASH_KEY ShortText
column_create Users bookmark COLUMN_SCALAR Bookmarks

load --table Bookmarks
[
{"_key": "http://groonga.org/", "title": "Groonga"}
]

load --table Users
[
{"_key": "alice", "bookmark": "http://groonga.org/"},
{"_key": "bob"}
]

select Users --filter 'bookmark.title == "Groonga"'
